Overview
Charles F. Erhart (born Karl Erhart; 25 September 1821–1891) was a Kingdom of Württemberg-born businessman who co-founded the American pharmaceutical company Chas. Pfizer & Co. Inc. with Charles Pfizer, his cousin and, later, brother-in-law.
Career
Like his cousin, Charles Pfizer, he was born in Ludwigsburg. Three years older than Pfizer, Erhart had mastered the confectioner's trade in his native town, and their skills blended well for the new business they founded together in Brooklyn, New York, in 1849. Chas. Pfizer & Co. produced fine chemicals, specializing in the compounding of chemicals not commonly made in America.
Awards came early to the partners—from the American Institute in 1867 and the Centennial Exposition of 1876 in Philadelphia—whose first product, santonin, neatly combined the skill of Erhart, the confectioner, with that of his cousin, the chemist. The medicine, shaped like a candy cone, blended the bitter santonin with a sugar-cream confection to make it palatable.
Erhart maintained close ties with Germany, returning to his homeland both for social and business reasons. During one trip, Erhart proposed to Fanny Pfizer, the sister of his cousin Charles Pfizer, and then married her in New York in 1856. This union further strengthened the familial ties of the growing business partnership. Erhart's scientific and technical skills were instrumental in bringing about an expanded line of chemicals and a much larger manufacturing plant.
From Wikipedia (CC BY-SA 4.0).